Seiko Cal. 4531 - 317

This Spring Drive model from 1965 features a 43mm PVD Black case. Powered by the 4531 caliber with 29j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-ec4edb3327e3]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

13.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Silver

Jewels

29j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1965

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